Fabrication of H 2 S gas sensors using Zn x Cu 1-x Fe 2 O 4 nanoparticles

摘要: Spinel ferrite nanoparticles can be easily retrieved and utilized for multiple cycles due to their magnetic properties. In this work, of a ZnxCu1-xFe2O4 composition were synthesized by employing sol–gel auto-combustion technique. The morphology, composition, crystal structure examined using scanning electron microscopy, infrared spectroscopy, X-ray diffraction. produced are in the range 30–70 nm manifest spinel cubic structure. tested sensitivity H2 H2S gases, Cu-based found most sensitive selective gas. Their enhanced response gas was attributed production metallic CuFeS2 that higher electrical conductivity as compared with CuFe2O4. fabricated sensors functional at low temperatures, consequently, they need operational power. They also simple fabricate appropriate cost.